Japan goes mining for gold McNugget

Forget the Golden Arches -- McDonald's in Japan wants to give you a golden McNugget.

Worth about $2900, the least-edible item on the chain's menu is being given away as part of a promotion for two new sauces.

The campaign also features a new character, Kaito Nuggets -- Phantom Thief Nuggets, in English.

To be in to win the 18-karat prize, participants have to post on social media with the hashtag＃怪盗ナゲッツ whenever they see him out and about.

"He may appear in some of McDonald's restaurants through the country, may throw out a ceremonial first pitch for a professional baseball game, or pay a visit to a prefectural governor making a surprising request entertaining people," McDonald's Japan said in a statement.

Runners-up will get a five-pack of ordinary McNuggets every day for nearly six weeks.